dev gridcontrol 行号

        /// <summary>
        /// GridView  显示行号   设置行号列的宽度
        /// </summary>
        /// <param name="gv">GridView 控件名称</param>
        /// <param name="width">行号列的宽度 如果为null或为0 则 默认宽度为30</param>
        public void DrawRowIndicator(DevExpress.XtraGrid.Views.Grid.GridView gv, int width)
        {
            gv.CustomDrawRowIndicator += new DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventHandler((obj, e) =>
            {
                //最顶上一行显示总行数
                //if (e.Info.Kind == DevExpress.Utils.Drawing.IndicatorKind.Header)
                //{
                //    e.Info.DisplayText = ((DevExpress.XtraGrid.Views.Grid.GridView)obj).DataRowCount.ToString();
                //}
                if (e.Info.IsRowIndicator && e.RowHandle > -)
                {
                    e.Info.DisplayText = (e.RowHandle + ).ToString();
                }
            });
            //if (width != null)
            //{
            if (width != )
            {
                gv.IndicatorWidth = width;
            }
            else
            {
                gv.IndicatorWidth = ;
            }
            //}
            //else
            //{
            //    gv.IndicatorWidth = 30;
            //}
        }